Which department should the residential building business complain to?

1. For residential buildings, you can directly complain to the property, and the property and neighborhood committees will come forward to coordinate and solve it, and property services are included;

2. Commercial housing is actually the same. You can find the property and neighborhood Committee. If you can't coordinate, you can also call the police.

Legal basis:

"Property Management Regulations" Article 10 The owners in the same property management area shall set up the owners' meeting and elect the owners' committee under the guidance of the real estate administrative department of the district or county people's government where the property is located or the subdistrict office or the township people's government. However, if there is only one owner, or if the number of owners is small and all owners agree unanimously, it is decided not to set up the owners' meeting, and the owners will jointly perform the duties of the owners' meeting and the owners' committee.